Fighters dream about restraining one drunk (7)

I believe the answer is:

militia

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'fighters dream about restraining one drunk' is the definition.
I can't judge whether this defines the answer.

'dream about restraining one drunk' is the wordplay.
'dream about' becomes 'mia' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'restraining' is an insertion indicator.
'one' becomes 'i' (Roman numeral).
'drunk' becomes 'lit' (slang term).
'i'+'lit'='ilit'
'mia' placed around 'ilit' is 'MILITIA'.

Can you help me to learn more?

(Other definitions for militia that I've seen before include "Armed civilian force" , "Territorial force" , "Civilian soldiery" , "Reserve force" , "Troops" .)

I've seen this clue in The Sun.

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